Continental US Customers:All items we sell ship for free within the Continental US. Shipping will be via the cheapest shipping method which will vary depending on the items in your order. During checkout, you may also be shown other optional faster shipping choices.

US Customers in Hawaii and Alaska: Free shipping applies to almost all products. A few large telescopes and mounts are excluded from this free shipping offer. For these items, please contact us to obtain a shipping quote before you check out using the online shopping cart.

International Customers:Free shipping does not apply to international orders. During check-out, you will be presented with several shipping choices and costs. However, the export of some items may be restricted outside the US due to size or manufacturer restrictions.

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Product Details

Black knobs for clamping and fastening in a variety of light- and heavy-duty applications. Constructed of high strength impact resistant techno polymer in a black matte finish. The knob has a blunted diamond knurl, which provides a comfortable and excellent gripping surface.